bartholomew



1. B. BARTHOLOMEW.

PLOW.'

APPLICATION FILED JULY H, [918.

Patented Nov. 23, 1920.

4 SHEETS-SHEET 1.

J, B. BARTHOLOMEW.

PLOW.

APPLICATION FILED IULY II, I918.

1,859,859, I Patented Nov. 23, 1920.

4 SHEETSSHEET 2.

.I. B. BARTHOLOMEW.

PLOW.

APPHCATION FILED JULY 11, I918.

Patented Nov. 23, m

4 SHEETSSHEET 3.

STAT

JQHN BARTHOLOIVIEW, OF PEOR-IA, ILLINOIS, ASSIGNO R TO AVERY COMPANY, A CORPORATION OF ILLINOIS.

PLOW.

Specification of Letters Patent.

Patented Nov. 23, 1920.

To 7 about it may concern:

Be it known that I, Jenn B. BARTI-IOLO- This invention relates to improvements in plows, particularly plows of the sort having concave-convex disks as the earth-engaging and fu Tow-opening parts.

One of the objects of the invention is to provide an. improved mounting for the disks; mountings which have their parts so constructed and related and have the disks journaled in such way that the disks are drawn rather than pushed. Moreover, the mountings are adapted to oscillate when the disks engage serious obstacles, and thus avoid having the plow swing out of its.

course and prevent twisting of the frame.

A further object of the invention is to provide a plow frame, a set. of disks, ground wheels and devices for connecting and mounting the aforesaid parts, all of such character that the implement can be used with a relatively larger number of disks or with a relatively smaller number, and in either case will operate the same except as to the number of furrows plowed.

Figure 1 is a plan view of a plow mechanism embodying my improvements;

Fig. 2 is a side view of the structure showing the parts in. the relative positions occupied when the disks are at work;

Fig. 3 is a face view of a disk in working position and showing in elevation the devices by which it is attached to the frame;

Fig. 4 is a vertical section on the line 10'10 of Fig. 3;

Fig. 5 is a partial elevation of those parts of the structure which are positioned at the furrow side and near the front end;

Fig. 6 is a plan. view of some of the parts in Fig. 5 and illustrating by dotted lines how the plow can be changed to cut a greater or lesser number of furrows;

Figs. 7 and 8 show details; and

Fig. 9 shows parts of the draft hitch devices. Y

The frame for supporting the working pa s of the implement includes a front nines ear 1 and side bars and i. The bars 1 and 2 are preferably L-shaped angle bars and are rigidly bolted together at the land end of the front bar 1, the bar 2 extending directly backward therefrom at right angles thereto. The side part 3 of the frame is preferably made of two angle bars, the lower bar 3 being rigidly secured to the furrow end of the front bar 1 and thence extending diagonally to points near the rear end of the side bar 2, to the vertical flange of which it is rigidly secured. The upper part 3* of the side part rests upon the horizontal flanges of the bars 1 and 2 and is rigidly fastened in position, lying in the same vertical planes as the lower part 3*.

4, 4 are cross brace bars rigidly fastened to the vertical flanges of the side parts 2 and 3 (Fig. 7). 5, 5 indicate the concaveconvex disks. Five of these are shown as mounted on the plow structure in Figs. '1 and 2. The disks are all of similar construction and are all mounted on the frame 7 in the same manner; the devices for mounting each being as follows. 7 is a plate carrying a tubular hub or spindle 8, this plate being riveted to the thin sheet metal disk. The spindle 8 is tapered and mounted in the bearing 9, being held. firmly, butfrotatably, in place by means of the flange cap 10 which covers and bears against the end of the bearing 9, the separable parts being held in place by the bolt 11 and the nut 12.

The bearing 9 is formed integral with the vertically arranged tubular shank 13 which is formed with a square socket 14. The front wall 13 of this shank is longer than the rear wall, see Fig. 4. Seated in' the square socket 14 is the lower end of a square rod 15 which is secured to the shank by a U-bolt 16. Theupper part of the rod 15 is seated in the bushings 1? and 18 alining vertically with each other. These are fitted in the bearing 19 which is bolted to the parts 3 and 3" of the frameside part 3. This bearing 19 is formed with a tubular bearing which extends vertically through it, the interior chamber being divided into two parts by an inturned flange 20. The lower bushing 17 is fitted in the lower part, or lower chamber, in the bearing 19, and the upper bushing 18 is fitted in the upper chamber. The bushing 17 has an angular flange 21 which fits against the lower end of the bearing 19 and the upper end of the bushing 17 its against the lower side of the flange 20.

The upper bushing 18 extends to the upper side of thefiange 20, this bushing 18 having at its upper end a fiange plate 22 which rests upon the upper end of the bearing 19. The rod or stem 15 extends through the bushings and through the flange plate 20. The stem and the bushings are held together, and held in the bearing, by a key or pin 25 passed through the upper end part of the stem. 24;, 2% are lugs or stops on the under side of the flange plate 23 is an arm formed or rigid with the plate 22 and extending inward. 26 is an arm formed with the shank part 13 to support the scraper 28 which is carried by the bar 27, the latter being slotted at 29 and adapted to be secured adjustably to the said arm 26.

The mannerof attaching a disk and its connected parts will be readily understood. it will be seen that the bearings 9, and the parts connected thereto, are so positioned that these bearings are relatively in front of the disks and that the latter are pulled or drawn forward through the earth as the frame moves forward, this being in contrar distinction to the ordinarymounting and positioning of the disks, they being commonly so held as to be pushed from bearings or carrying devices which are on their convex sides.

Again, it will be seen that the disks are so coupled to the frame that they and their standards or supports may oscillate if they encounter any obstructions, such as rocks or stumps. The latter tend to swing the plow frame out of line and to twist the attaehments. In the present mechanism the disks, after swinging so as to escape obstructions, are immediately returned to their operative positions. To accomplish this, each unit is provided with a yielding holder such as a spring 32 which is connected by link 31 to the aforesaid arm 28 of plate 22 of the disk unit, the spring at the other end being connected toan adjustable abutment 38. As shown, this is an eye-bolt 3a. with. a hook part for the spring, the bolt engaging with an arm 35 (Fig. 8) pivoted at 36 to a bracket plate 37 secured to the side part 3 of the frame. The lugs or stops 2st on the flange plate 22 the upper end of the bushing 18 limit the movements of the disk and its attachments, one of the stops holding it rigid against moving in one direction beyond the normal working position. But when the disk strikes an obstruction, it can swing to the dotted position shown in Fig. 1 until stopped by the rear lug 24. After the obstruction is passed, the spring 32 draws it back to its normal place.

The disk mountings are so made and attached, and the parts of the frame so made and related to each other and to these mountings, that the structure, as an entirety, can be readily changed so as to have more or fewer disks as occasion requires.

The frame is mounted upon a land wheel .1-1, a front furrow wheel l5 and a rear furrow wheel 63. YVith the rear furrow wheel are combined devices whereby power can be taken therefrom for elevating the frame and plows, the power taken from the rear wheel being transmitted through suitable devices to the front wheels. But as the means for effecting the vertical movements of the -frame and plows in relation to the ground wheels are not involved in the present invention, it not necessary to describe them in detail.

The land wheel i1 is mounted on the spindle part of a vertical shaft l0 which is carried by a box 39 bolted to the side bar 2 of the frame. The front furrow wheel is mounted on the inclined spindle of a shaft having the vertical part 1H, which is mounted in the box e3 which is bolted to the di agonal side bar i? is a crank arm secured to the shaft 4st and a9 a crank arm secured to the shaft 40 of the land wheel. These crank arms are connected by, a pitman having two arms 51 and 52, one or both pro vided with a series of bolt apertures 53. Bolts 54L fasten the two bars together in adjusted position.

98 is a cross shaft mounted in bracket arms, one formed with, or positioned close to, the bearing bracket 43 and the otl er being situated on the land side of the frame. This shaft is used to transmit the power to the devices which hold the front furrow wheel in adjusted position, such as the crank arm 99 and the link 100. The shaft can be rocked by suitable devices on the land side of the machine. All of the parts referred to can be positioned at either of several places in relation to the disks. In Figs. 1, 2, 5 and 6 the front wheels and their attachments are shown by full lines in their extreme forward positions so that the disks of the full possible number are shown as in use.

In Fig. 6 the plow is shown with the parts attached for the turning of only four furrows. The foremost disk has been removed. The fastenings for the bearing of the front furrow wheel have been detached and said bearing can be moved backward along the frame and re-fastened, as shown in the dotted lines in Fig. 6. its four rear bolts having been passed through the bolt apetures in the frame bar 3 through which previously passed the four rear bolts of the disk bearing bracket. And the two front bolts of the wheel bracket are passed through the bolt apertures at at) (Fig. 5). he bearing bracket at 39 for the land wheel 4L1 is shown by the dotted lines in Fig. 6 as having been. moved back along the side frame bar the proper distance and there fastened by passing its bolts through apertures of the second set of bolt apertures at 42, Fig. 2.

The furrow side bearing bracket 98 for the rock shaft 98 is shown in dotted lines in Fig. 6 as moved back from the position shown in full lines, and when in the rear position is fastened by its bolt 46 passing through the front bolt aperture eh") in the side bar 3" and by the bolt 46 which passes through the lnracket 98 and also through the bracket is of the front furrow wheel spindle and through the rear bolt aperture I6. This bracket i3 is further fastened rigidly in place by its bolts -13 which now take the position of the bolts 4:6 of the front disk bracket after the latter has been removed. rind the bolts of the lower horizontal series for the spindle bracket l8 pass through the bolt apertures in. the side bar element 3, which take also the bolts of the lower horizontal series of the disk bracket when the latter is in place. And the land side bearing 98" for shaft 98 is, by the dotted lines, shown similarly moved back and re-fastened'on the side bar 2. The steering connection 51, 52 has, as in the dotted lines, been shortened, the bolts 5%, having been first withdrawn and the two end bar sections 51, 52 having been slipped inward, have been again fastened in place.

I he land wheel and the front furrow wheel, when the parts are as in dotted lines in Fig. (3, are related to each of the remaining dis rs in precisely the same way that they were related to the five disks before the series of plow devices was shortened.

T he framework is hitched to an engine or tractor by the chain 60, the clevis 59, and the bar 57 having bolt holes 58 (Fig. 9) and adjustably connected to the chains and also connected to the steering bar 56 combined with the land wheel mounting, which latter, in turn, with the devices 51 and 52, imparts corresponding steering movement to the front furrow wheel. None of these sets of devices, however, forms the subject-matter of any claims in the present specification.

W hat I claim is 1- 1. In a plow in combination, a frame, including a front crossbar, a longitudinally arranged landside bar and a diagonally disposed bar connected to the rear end of the landside bar and the furrow end of the crossbar, said inclined bar being formed of two superposed L-shaped angular sections with their horizontal flanges positioned together and their vertical flanges in the same plane, braces connected to said horizontal flanges and also connected to the landside bar, a plurality of disks and mountings forsaid disks secured. to the vertical flanges of the inclined bar.

2. in a plow, in combination, a frame including a front cross bar and a side bar connected thereto and extending rearwardly and diagonally therefrom, a plurality of bearings connected at spaced points on said diagonally disposed bar, a disk for each bearing, and a mounting for each disk journaled in said bearings, said mounting being located in front of the disk, whereby a pulling action is obtained as the plow is moved forward.

3. In a plow, in combination, a frame in cluding a front cross bar and a side bar 0011- nected thereto and extending rearwardly and diagonally therefrom, and provided with a plurality of spaced sets of bolt receiving openings, a bearing for the mounting of each disk, said bearings being bolted to the sets of bolt receiving openings in said diagonally disposed bar, land wheels for the opposite front sides of said frame, a bearing for the mounting of each wheel, one of said wheel bearings bolted to said diagonally disposed bar and adapted to be bolted to the bolt holes used for the mount ing of any one of said disk bearings, where by a disk and hearing may be removed and the land wheels adjusted to the change in number of disks, and steering connections between said land wheels.

4. In a plow, in combination, a frame, a bearing block mounted on said frame, a disk, a mounting for said disk including a bearing having a-shank with a square socket, bushings journaled in said bearing block and having square openings therethrough, and a square shaft member connected with the shank of the disk bearing and also con nected with said bushings.

5. In a plow, in, combination, a frame, a bearing block mounted on said frame, a disk, a mounting for said disk including a bearing having a shank with a square socket, bushings journaled in said bearing block and having square openings therethrough, a square shaft member having one end seated in the socket of said shank and passing up through the square openings in said bushings, an arm projecting laterally from said shank and a scraping blade having an adjustable connection with said arm.

6. In a plow, in combination, a frame, a bearing block mounted. on said frame, a disk, a mounting for said disk including a bearing having a shank with a square socket, bushings journaled in said bearing block and having square openings therethrough, one of said bushings having a plate extension, a coupling on the frame, a yielding connection between said coupling and said plate extension, and a square shaft member having its lower end seated in the socket of said shank and passing up through the square openings in said bushings.

7. In a plow, in combination, frame,'a disk, a bearing for said dish, a vertically ar god horiaontaliy oscillating supp the bearing, and normally yielding meansfor holding the disk to its work and adapted to automatically oscillate the bearing and the support around a vertical axis to return them to working position after displacement.

8. In a disk plow, the combination of the supporting wheel, the frame, a series of disks each inclined to the vertical planes of advance and to transverse vertical planes, each disk having an inclined rotary spindle on its concave side,a stationary inclined bearing for each disk and a vertical support for the bearing automatically movable in relation to the frame.

9. In a disk plow, the combination of the furrow wheels, the land wheel, the frame supporting said wheels and having a bar extending directly from the front furrow wheel to the rear furrow wheel, a series of disks, and disk mountings secured to the last said bar and situated on the concave sides of the disks.

10. In a disk plow, the combination of the wheels, the frame, the series of disks each inclined to both longitudinal vertical and transverse *ertical planes and each having a forward projecting rotary spindle on its concave side, an inclined bearing for each spindle and a vertically positioned support for each bearing, said vertical support having its lower end positioned in the cavity of the disk and the supports being independently and detachably connected to the;

frame.

11. In a disk plow, the combination of the wheels, the frame, a horizontally vibratable disk and a normally yielding holder for the disk adapted to hold it in working position with limited predetermined force.

12. The combination of the wheels, the frame, a horizontally vibratable disk inclined backward at the top and inclined to the line of draft, and a yielding holder for retaining the disk in working position.

13. The combination of the rear furrow wheel, the frame, the series of disks inclependently removable from the frame, the front land wheel, and the front furrow wheel, the latter wheel and the frame being adapted to be secured together to hold the wheel in either of several positions having the same "working relations to either of several of the disks.

14. The combination of the frame, the rear furrow wheel and the plurality of disks independently removable from the frame, the front land wheel, and the front furrow wheel, the mounting devices of the last two said wheels being adjustable to either of several positions, longitudinally.

In testimony whereof, I afl iX my signature.

JOHN B. BARTHOLOMEXV. 

